Pros
The employee discount is great. 25% at Old Navy, and 50% at both Gap and Banana Republic. It is very easy to request time off, and you can do it via the punch in computer. Everywhere else part-time that I worked you had to jump through hoops to request a day or two off, and were often denied. You can also change your availability through the computer should your schedule change. It's also very easy to switch or give away shifts to other employees. They have a little form you fill out and sign, you pin it up by the office, and you're good to go!
Cons
The stores are chaotic and kept very understaffed. Expect to be overwhelmed. Lower management have favorites, and can be catty/rude. Try to be polite and professional as your relationship with them will directly affect how many shifts you will be scheduled each week. Even with open availability, don't expect many hours unless during the Christmas season. They also continue hiring people though many of their employees are only getting 1 shift a week. Though most sales associates are awesome, there are always a few lazy ones who cop-out and make extra work for everyone else by putting things away improperly, or dumping/hiding stuff. It can be very frustrating to see no reward or praise to working hard versus those doing less-than stellar work.